TCL 55R617 combines gorgeous 4K HDR image efficiency and the award-winning Roku TV sensible platform in a daring, brushed steel design for superior TV expertise. Dolby Vision delivers immense brightness and distinction, in addition to a fuller palette of wealthy colors. TCL‘s Contrast Control Zone know-how individually optimizes the picture throughout as much as 160 zones to yield hanging distinction between gentle and darkish areas. The 6-Series fashions’ PQ Engine offers exact coloration replication, whereas HDR Pro Gamma considerably improves HDR efficiency. Powerful energy is complemented by the award-winning Roku OS sensible TV platform. Dolby Vision, the premium HDR expertise, presents superior distinction and brighter, extra correct colors. Brilliant 4K decision delivers gorgeous elements and visible outstanding knowledge. Contrast is individually optimized throughout160 zones to attain extremely localized areas of the hanging distinction between bright and darkish areas of the picture.